Compression grease-cup.



L. W'. DURST. GUMPBESSIOH GREASE CUP. nrmunmx mum 3.31, 1909.

936,872. Patented och 12,1909.

INVENTOR ATTORNEY PATENT OFFICE.

LOUIS W. BURST, 6F PHILADELPHIA, PENNSYLVANIA.

COMPRESSION GREASE-CUP.

Specification of Letters Patent.

Patented Oct. 12, 1909.

Application filed .llareh 81, 1909. Berle] No. 486,883.

To all wlwm it may concern:

Be it known that I, LOUIS W. Dnns'r, a citizen of the United States, residing in the city .of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Compression Grease-Cups, of which the followin is a full, clear, and exact description, re erence being had to the accompanying drawings, forming a part of this specification.

My invention relates to compression grease cups and has for its object the improvement. of that type of such device to enable it to be detachably mounted directly on the connecting rod of an en ine or other mechanical element to be liibricated, to eliminate the necessity for screw-threading the interior of the on and the periphery of the plunger; and fina 1y to pivotally connect the cap, compression screw and lunger, as a whole, \vlth the cup and avoid the present necessity for physical detachment of the former from the latter when filling the cup.

To these ends my invention consists of the improved device hereinafter described, the novel features of which are pointed out in the ap nded claims.

In t e accompanying drawings illustrating my invention. Figure 1 is a front eleva tion of the device with the pivoted cap, plunger and compression screw swung m their common pivotal bearing to open the cup, and Fig. 2 is a vertical section, partly in elevation, showing the device with the cup closed, and the cap and its adjunctive parts in operative position thereon.

Referring now to said drawings, 1 indicates a cvlindrical cup or grease holder, with :1 depending hollow stem 2 for the delivery of liquid grease to the mechanical element to belubricated. These Jarts are constructed as usual, save that he interior surface of the cup is not screw-threaded, but is 511103111, anl' siwl: also that there is cast upon e si e 0 tie on a su rti or attaching bracket 3 in wliich a or oles & are formed to enable the device to be fastened by screws or otherwise to any fixed part of the engine or machine contiguous to the part to be lubricated.

On the opposite side of the cup 1 is cast a second bracket 5 which has a vertically-disposed screw-threaded recess 6 adapted to receive the screw-threaded end 7 of the swivel arm 8, 8", the latter extending inwardly and horizontally over the center of the cup, and

with uscrew-threaded recess 9 in line therewith. The threaded end 7 of the swivel arm is pivotally secured in the recess of the bracket 5 by a nut 10 or other suitable deso vice.

Passing through the screw-threaded recess 9 of the part 8 of the swivel arm, is a threaded compression rod 11, carrying on its end the plan r 14, and passing through 5 the screw-three ed recess 12 in the center of the closing cap 13, which has a threaded flange 13 enga ing a thread 1' on the peripheral edge of the cup.

It will be observed t at the plunger element in my device has a )erfectly smooth periphery and is not threa ed, and also that threads on the inner surface of the cup are no longer em pllloyed because not necessary in my device. e top end of the compression screw has an operating handle 15, secured by screw pin and washer 16 or otherwise.

The gpleration of the device is as follows: e cup being opened as shown in Fig. 1, by a suitable turnilzg of the handle of the compression screw, e first eflect is to draw the plun up into the flanged cap, and then a continued turn raises the ca above the edge of the cup, and enables sai parts to be swun to one side on the swivel arm. The cup being then filled with ease, the said parts are swung into operative or closed 'tion, as shown in Fig.e2, the first turn 0 the compression screw ing to seat the cap on the en and a continued turning depressin the p anger on the grease contents of te cup, driving the exprewcd liquid grease through the depending delivery pipe as usual. Aside from the advantage of maintainin the arts in physical connection, and are facility which results therefrom, in openin and clo.' the cup, a most decided a vantage resu ts from the avoidance of any necessity for threading the perifphery of the plunger and the interior sur ace. of the en Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a. compression hination with a cylin basal outlet, 9. closing cap having a central threaded aperture, 9. plunger, a compression screw engaging said threaded aperture in the cap and operatively connecting said ease cup, thecomrical cup having a plunger and osing ca 1, of a bearing racket on the periphery o the cup having a brought into or out 0 threaded vertical recess, and a swivel arm having a vertical member operatively mounted in said recess and a horizontal arm he'vin a threaded recess with which the free end 9 said compression screw 0 ratively engages.

:2. The combination 0 an interior-1y cylindrical cup having a basal tubular outlet, :1 flanged closing cap, there being a threaded connection between the flange of the cap and the ipheral edge of the cup 11 plunger a apted to be reciprocated w thin the cup, a compression screw having one of its hearings in a threaded aperture in the flanged cap, a bracket on the periphery of the cup, and a swivel arm operatively mounted in said bracket and havlng a recess in its free end in vertical alinement with the free end of said compression screw.

3. The combination with an interiorly cylindrical cup having a basal outlet, :1 detachable closing cap having a central threaded aperture, a compression screw, :1 plunger carried bv said screw, of means whereby the cap, plunger and screw may be operative alinement with the cup, said means consisting of a swivel arm having a threaded aperture in alinement with the threaded aperture in the of ISaidj threaded aperture? nn in ea cap, the end-of the screw engaging libth a bearin bre'ckettonltheperipheryo tthe'cup havin a threaded recess 1n which theopposite an "thrende d-end" of said swivel arm is operat-ively mounted.

4. Thecombination with a ease cup of '35 the character recited, a. de 0 able closing cap therefor, a plunger a compression screw operatively connectmg hoth-cap and plunger and adaptedto successively bring both said elements into and out of operative enga ement with the cup, of a movable hearing or said screw, comprising a bearing bracket on the periphery of the cup and a swivel arm havlng" a threaded end engaging said screw end ;an oppfsite end rotntablv supported 1n said brac et, and means consisting of another bracket on the periphery of the cup ada ted to detachably support the device as a w ole.

In testimony whereof, I have hereunto alfixed my signature this 30th day of March LOUIS W. DURST. Witnesses:

A. M. Broom, B. A. Dnnmr. 

